Skyjacker specifically engineered a progressive variable rate coil spring, distinctively a 2-stage dual rate long travel coil. Spring rate progression is from a first Flex Rate to a second Ride Rate. First Flex Rate stage delivers a comfortable ride with the ability to flex\expand during full articulation as the suspension drops (full droop). This keeps the coil springs seated in the upper coil mount/bucket and the tires in contact with the terrain. Second Ride Rate stage only engages after compression past Flex Rate. Front and Rear Bump Stop Spacers bolt onto the axle bump pads and keep the suspension travel safely in check. Rear Track Bar Lower Axle Mount Bracket re-centers rear axle and restores the Wrangler's distinctive suspension handling characteristics. Complete with All High-Quality Grade Mounting Hardware.

Features:
2 Inch Component Box With Dual Rate Long Travel Coil Springs Consistent Controlled Stability with Smooth Riding Comfort. Specifically Engineered Progressive Variable Rate Springs. Flex Stage\Ride Stage Dual Rate Long Travel Coil Springs. Allows Full Articulation as Suspension Drops (Full Droop). Yields More Lift in the Front for a More Level Stance. Track Bar Bracket Centers Axle Under Vehicle Properly. Bump Stop Spacers Keep Suspension Travel Safely in Check. Distinctive Improved Suspension Handling Characteristics. Delivers a Comfortable Ride. Flex for increased Articulation. Engineered to Maintain Proper OEM Suspension Geometry. Complete with All High-Quality Grade Mounting Hardware. Easy Straightforward Installation with Step-By-Step Instructions.